BALTIMORE (WJZ) — Runners, take your mark. The Baltimore Running Festival is hours away, bringing tens of thousands of people to the city.

After the attacks in Boston earlier this year, extra security is tight.

Linh Bui explains how police officers are stepping it up.

Police won’t reveal many details about their plans, as they want to keep most of that information confidential. However, they do promise a significant increase in security.

In April, two bombs exploded at the Boston Marathon finish line, killing three people and injuring hundreds.

With the Baltimore Running Festival this weekend, police are not taking any chances.

“The security will be increased. There will be more officers deployed to this event. We’re very fortunate. Our local, state and federal partners are contributing a lot of resources,” said Lt. Col. Melissa Hyatt, Baltimore City Police Department.

For the past month, officers have been inspecting the course. Expect heightened security in high traffic areas, like Celebration Village near Camden Yards, where sponsors were setting up Friday.